/* basic */
.left {
    float: left;
    position: relative;
    top: 10px;
}

.right {
    float: right;
    position: relative;
    top: 24px;
}

.fixed {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
}


nav {
    height: 81px;
    background: rgba(255, 255, 255, 1);
    box-shadow: 0px 4px 8px 1px rgba(0, 0, 0, 0.18);
}
.center{
    width: 1400px;
    margin: 0 auto;
}
/* logo */
.nav-brand {
    height: 55px;
    width: 220px;
    background: url("../images/logo.png") no-repeat;
    background-size: cover;
}

/* left */

.nav-left>li button {
    width: 101px;
    height: 57px;
    background: transparent;
    border: 0;
    cursor: pointer;
}

.nav-left>li button span {
    width: 38px;
    height: 19px;
    font-size: 18px;
    font-family: "Microsoft YaHei";
    color: gray;
    line-height: 14px;
}

.nav-left>li button span a{
    color: gray;
}

.nav-left>li:first-child button{
    border-radius: 10px;
    background: rgba(59, 177, 73, 1);
    border-radius: 10px;
}
.nav-left>li:first-child button span a{
    color: white;  
}

/* form */

.nav-form {
    top: 20px;
    left: 20px;
}

.nav-form>input {
    width: 281px;
    height: 34px;
    border: 1px solid rgb(163, 163, 163);
    display: block;
    border-radius: 16px;
    padding-left: 15px;
    font-size: 14px;
    line-height: 14px;
}

.nav-form>input:placeholder-shown {
    color: rgba(112, 112, 112, 1);
}

.nav-form .search {
    display: block;
    background: url("../images/search.png") no-repeat;
    height: 22px;
    width: 23px;
    position: absolute;
    bottom: 8px;
    right: 11px;
    cursor: pointer;
}


/* right */
.nav-right{
    margin-right: 20px;
}
.nav-right li{
    padding-left: 0;
}
.nav-right>li a {
    font-size: 16px;
    color: rgba(112, 112, 112, 1);
    padding-top: 8px;
    padding-left: 30px;
    margin-left: 25px;
}

.nav-right>li .writing {
    background: url("../images/writing.png") no-repeat left center;
    background-size: 25px 25px;
    color: #43B451;
}

.nav-right>li .person {
    background: url("../images/person.png") no-repeat left center;
    background-size: 18px 21px;
    padding-top: 6px;
}


/* 下拉菜单 */
.nav-right li:nth-of-type(2) {
    display: inline-block;
    height: 40px;
}

.nav-right li:nth-of-type(2):hover ul {
    display: block;
}



.drop-menu {
    position: absolute;
    background: white;
    border: 1px solid rgb(201, 201, 201);
    padding: 0;
    top: 40px;
    right: 0;
    display: none;
}

.drop-menu li {
    display: block;
}

.drop-menu li a {
    color: #707070;
    font-size: 14px;
    text-align: center;
    margin-left: 0;
    padding: 5px 10px
}

.drop-menu li a:hover {
    background: #3BB149;
    color: white;
}



/* main */
main {
    /*padding: 0 calc(50% - 600px);*/
    max-width: 1200px;
    margin: 0 auto;
    margin-top: 50px;
}

/* aside */
aside {
    width: 180px;
    float: left;
    margin-right: 50px;
}

aside a {
    border-radius: 10px;
    font-size: 18px;
    color: #868686;
    text-align: center;
    padding: 10px 0;
    text-indent: 60px;
    margin-bottom: 2px;
    text-align: left;
}

.aside-pop .remen {
    background: url("../images/grzl.png") no-repeat 20px center;
}

.achoice {
    background-color: orange !important;
    background-size: 17px 20px;
    color: white;
}

.aside-pop .newcontent {
    background: url("../images/new.png") no-repeat 20px center;
}

.tech dt {
    font-size: 18px;
    color: #444444;
    margin-left: 25px;
    margin-bottom: 10px;
}

.tech dt>span {
    margin-left: 5px;
    vertical-align: middle;
    display: inline-block;
    width: 102px;
    height: 1px;
    border-bottom: 1px solid rgba(220, 220, 220, 1);
}

.tech dd {
    margin-left: 0px;
    margin-bottom: 10px;
}

.tech dd:hover {
    background: rgba(207, 255, 213, 1);
    border-radius: 10px;
}

.tech dd .sheji {
    background: url("../images/sheji.png") no-repeat 20px center;
}

.tech dd .qianduan {
    background: url("../images/qianduan.png") no-repeat 20px center;
}

.tech dd .houduan {
    background: url("../images/houduan.png") no-repeat 20px center;
}

.tech dd .anquan {
    background: url("../images/safe.png") no-repeat 20px center;
}

.tech dd .qita {
    background: url("../images/other.png") no-repeat 20px center;
}

article {
    width: 900px;
    float: left;
    display: block;
    position: relative;
}

article figcaption {
    font-size: 20px;
    padding: 7px 0;
    color: rgba(68, 68, 68, 1);
    border-bottom: 1px solid #CECECE;
    text-indent: -7px;
    margin-bottom: 22px;
}

article section {
    /*   // height: 130px;*/
}

article section header {
    font-size: 20px;
}

article section p {
    color: #6C6C6C;
    width: 742px;
}

article section footer {
    font-size: 12px;
    width: 742px;
    display: flex;
    color: #6C6C6C;
    flex-direction: row;
    justify-content: space-between;
}

article section footer div {
    padding: 10px 0;
}

article section footer .dianzan {
    cursor: pointer;
    background: url("../images/dianzan_gray.png") no-repeat left 3px;
    background-size: 20px 20px;
    padding-left: 30px;
}

article section footer .guankan {
    cursor: pointer;
    background: url("../images/remen.png") no-repeat left 6px;
    background-size: 12px 16px;
    padding-left: 25px;
}





/*小火箭*/
.top {
    width: 35px;
    height: 35px;
    background-image: url(../img/火箭.png);
    background-size: cover;
    cursor: pointer;


    position: fixed;
    bottom: 40px;
    right: 40px;
}




/*文章的边框*/
.img-div {
    max-width: 500px;
    margin: 0 auto;
}

section {
    padding: 10px;
    cursor: pointer;
}

/*文章的图片*/
section img {
    max-width: 500px;
    border-radius: 5px;
    margin-bottom: 10px;
}


.bottom-warm{
    position: absolute;
    bottom: -50px;
    left: 10px;
    color: red;
    line-height: 30px;
    margin-bottom: 10px;
    margin-top: 15px;
    width: 742px;
    text-align: center;
    background: #F1EE96;
    margin-left: 10px
    border-radius:5px;
    font-family:"楷体";
    display: none;
}

.